This is what 10 lbs./Min of butane recovery looks like. The first part of the video is showing the bottom of the “cold side” of the heat exchangers. This was hot butane vapor a fraction of a second ago and had been condensed back to liquid. The next part of the video you’re looking at is the liquid butane pouring into the recovery solvent tank. We achieve these recovery rates completely passive using only heating and cooling with no recovery compressors. Speeding up your recovery times and incre

Butane burning in a... - Royal Institution of Great Britain

The primary extraction process... - Global Petroleum Society